Live Labs does a lot of interesting things, among this set there is a special gadget for sidebar whists -
Coloir Picker , at first glance, a placer of strange colored circles.
![sidebar [2] sidebar[2]](http://constantin.kichinsky.ru/wp-content/uploads/2008/10/sidebar2-thumb.jpg)
When you click on a circle, the RGB code of the corresponding color is copied to the clipboard.
Palettes, you can customize by entering / adding / deleting the desired color. True, it is strange that the color can be edited only in numbers.
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![Color Palettes [4] Color Palettes[4]](http://constantin.kichinsky.ru/wp-content/uploads/2008/10/colorpalettes4-thumb.jpg)
An interesting palette can be found by keywords through the website
COLOR lovers , on which enthusiasts store, preserve and share interesting collections of colors and patterns (patterns). Here, by the way, you can edit colors through the palette :)

Palettes can be saved and loaded at any time.
ps About Adobe Kuler can not remind. I know :)